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Finding the Fourth Proportional to 65,044.80, 89,750.70 and 36,749.88

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Solution

The fourth proportional to 65,044.80, 89,750.70 and 36,749.88 is: 50,708.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,044.80 : 89,750.70 = 36,749.88 : x
  2. Step 2: Convert to fraction form
    65,044.80/89,750.70 = 36,749.88/x
  3. Step 3: Cross multiply
    65,044.80x = 89,750.70 × 36,749.88
  4. Step 4: Simplify right side
    65,044.80x = 3,298,327,454.92
  5. Step 5: Solve for x
    x = 3,298,327,454.92/65,044.80
  6. Step 6: Final answer
    x = 50,708.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.